Electbic-clttsteb-lamp body and shade-holder



Hi D. CAHELL.

ELECmC CLUSTER LAMP snm' Mm SHADE HOLDER. I

i PPLCAUN HL IN 2l?. 920. 1,353,563. Patented Sept. 21, 1920.

SSHEHS SNLE 1.

n u INVENUY:

ATM/5 i HnD. CAHLLL. ELECTRIC CLUSTER LAMP BDDY AND SHADE HOLDER.

APPUCM'IUN FILED 1ML 26, |920.

1,353,563, PatentedSept. 21, 1920.

3 SHEES NSHEET 2.

H. D. CAHELL.

ELLULHLC CLUSTER LAMP som AND SHADE HOLDER.

MJPLICAUON FILM) IMJ-2515320.

PatentedSept. 21, 1920.

3 SHELTSMSHUET-ll M TL @LLL UNITED.. 'surge HARRY D. CHILL, 0F BOSTON, MASSACHUSETTS.

ELECTRIC-CLUSTER-LAMP BODY AND SHADE-HOLDER.

Specification of Letters Patent.

Patented Sept. 21, 1920.

Application tiled Jianuary 26, 1920. Serial No. 354,172.

To (1N yw/lohz thu/y Concern:

., `Be it known that l, HENRY D. CAHILL, a

,citizen ot' the United States, residing at Boston, county of Suffolk, State of Massachusetts, have invented a certain new and useful Improvement in Electric-Cluster- Lam i Bodies and Shadedioldel's, of which the `i`ollowing is a Specififation, reference being had therein to thc accompanying drawings.

Une object of the invention is to provide a port-able electric lamp body adapted for use with a cluster of lamps. Another object of the invention is to provide the cluster lamp body with a shade support for use in' Combination with a shade for a center lamp and side lamps. Another object of the invention is to provide the cluster body with interclmngeahle means whereby it is adapted for use. either with side lamps alone without a'center 'lamp` or for use in combination with aren-ter lamp and side lamps. Another ohject of the invention is to provide a shade l'xolder for use with a low-down `shade So called.- when the side lamps alone are used. Another' object is to provide the lamp with means for supportingl a shade when the eenter lamp is used with the side lamps.

The invention will be fully understood when. taken in conneoion with the accom panying drawings.. and the novel features` thereof wi l l be pointed out and clearly defined in the claims at tht` closel ot' this specificatiin.

i l'the` dra wings, 'Figure 1 is a View inY ele- Avizfltion partlyl in section of a lamp'body, to-

ietlieiwith a cluster of lights in con1binationl with a refiector, reflector supporting: plate` lamp shade vand shade holder, ernbodyinglr the invention.

Fig. Qis a view in elevation of the lamp body shown in Fig'. l.

Fig. Jl is a plan view of the lam J body.

Fig. 4 is a dctail view of the refieetor supporting: member shown in Fig. l.

Fig. 5 ia a detail view showing the method of attaching to the lamp body the lamps composing the cluster.

Flg. 6 is a view in elevation of the Wire shade holder shown in Fig. 1.

Fig. 7 is a plan view holder Shown in F 6.

F ig. 8 is a View in eleva-tion partly in section showing the wire shade holder together with an auxiliary shade holder for use in supporting a lamp shade centrally of the lamp body.

Fig. 9 is a view in elevation of the auxiliary -shade holder shown in Fig. 8.

Fig. l() is a view in elevation partly in section showing the lamp body together with a` cluster of lights in combination with a shade supporting member, the indirect light being detached from the lamp assembly.

Fig. l1 is a. view in elevation of the shade supporting member shown in F ig. 1H.

"ig: 12 is a plan view of porting member of Fig. 1l.

Referring: now to the drawings, 1 represents a lamp body which is Shown without the ordinary supporting base but is adapted to be attached to any suitable form of support, the said body portion l peferahly being internally screw-threadedin its lower end portion 2, so that it may be screwed to the standard of the support.

The upper part of the body has an outwardly Haring eupshaped portion 10 to form a seat 4for the holder plate on which the shade holder which surrounds the refiector,is seated. Then a oenter light is used with the cluster as shown in Fig. 1 the said holder plate comprises a saucer-shaped of the wire shade hase 8 having` a flaring portion 9. a central` a pertlre, and an upwardly extending screwthreacled tubular portion 3 rising fronrthe )eriphery of the aperture in the base 8. I`he lamp body is' provided with a larnp socket 29. which extends up through the aperture in the base 8 into the tubular portion 3 of the reflector supporting plate. The base 4 f an electric light bulb-5 is inserted loosely down through the tubular member 3 of the reieotor supporting plate and is screwed into the socket 29. The base S of the reflector supporting plate is seated upon the arin upper end 10 of the lamp body which is s own in Fig. 1. The rim l1V of the Haring ortion of the lamp body is curvedv to orm an annular internal the shade supholder.

The reflector 7 is preferably flared up wardly on an ogee curve and its lower en is formed with an annular base portion 6 which is internally screw-threaded to fit the exterior screw threads of the ,upwardly extending ortion 3 of the reflector supporting plate. he reflector is screwed onto the outside of the tubular member-3.

In order to support a shade as well as lock the parts together, I rovide a skeleton frame. preferabl ma e of wire (see Fi s. 1, 6 and 7), w ich serves to lock the re ector su porting late 8 in position on its seat in t e bod o the lamp. This wire frame is preferab y of the general contour of the reflector 7 but is of larger diameter so as to surround the reector. It comprises a plurality of upright rib portions 17, preferably four in number arranged 90 apart from each other, and preferably bent to the general shape shown in Figs. 1 and 6. Each wire 17 is bent at its lower end to form a loop `or lug 18, which as shown bulges slightly outward and serves as a locking lug, as will be hereinafter explained. ring 19 runs through the eye ofsaid lug portions 18 forming an annular bottom for the shade holder and serves as atie tounite together the lower ends of the rib portions 17. It is welded or otherwise permanently secured to the lug ortions 18 so that they will not slip. Prefrably there is also provided a wire ring 20 which is welded to the ribs a short distance above` the ring 19 and rests upon the upturned ends of the lug portions 18 of the ribs` as shown in Figs. 1 and 6.

There is also preferably provided another wire ring 22 which encircles the four rib members 17 at some point intermediate the upper and lowerends as shown in Figs. 1,

6 and 7, and is welded or otherwise secured y thereto.

The upper end of each rib member 17 is neferably bent over to form a substantially horizontal arm 23 terminating in a U-Shaped hook 24. The purpose of the U-shaped hooks is to enable them to support the ringr .if a shade, as will be hereinafter described. Preferably also at the end of the upright portion ot the rib 17 where it is bent to form the arm 23 it is twisted to form a loop or eye 25 for the purpose of connection with an auxiliary wire frame to support a flattop )ed shade, as will be -hereinafter descri ed. A wire ring 26 encircles the ribs 17 near their upper ends just below the said lrops 25, and is secured to said ribs by welding or other suitable means.

The upper ed e or rim 11 of the body 1 is formed with our notches 27 corresponding in number and spaced apart from each ot er corresponding with the spacing of the loop or lug portions 18 of the wire ribs yshown in 17, so that the wire cage may be assembled with the body 1 by seatin the wire cage down on top of the body wlththe said lu portions18 in alinement with the severa notches 27 in the rim 11` of the body 1. These notches admit the loop 0r lug portions 18 down into the annular groove within the rim 11, then by turn'ing partially around on its axis so as to bring the lug portions 18 into the portion of the groove intermediate the notches, the said wire frame is securely locked against withdrawal from the body of the lamp except by continuing the rotation y to bring the lugslS again into alinement with the notches. When the wire frame is thus assembled with the base, the saidlug portions 9 of the reflector supporting plate 8 and hold the said plate to its seat on the flaring rim 10 of the lamp body. Thus the reflector supporting plate 8, thereiector 7, the wire frame, and the lamp locked together. 4

The U-shaped hooks 24 on the ends of the arms 23 may serve as supports for the supporting ring of a'shade, if desired.

The construction thus far described so far as relates to the reflector and the means of locking together the lamp bodyfreflector and reflector supporting plate, forms the 18 are seated upon the Haring rimA body1 are all rigidly subject matter of a companion application yof which is secured the threaded end 39 of the stem 33, which is in swivel oonneotin with a socket member 34 ada tedto receive the base of the lamp 3() in tll ner. socket with the stem 33 consists (if fortuin the stem 33 with an annular groove 35 whic is engaged by a screw 39 mountedinthe socket member 34. The socket member 34 may be turned on its axis so as tobrilng the lamp at varying angles of inclination, as

Fig. 1. It may be held-.iti 'its ad usted position by the screw 39. bese side am 30 will extend outside of the ribs 17 of t e wire cage.

A shade 37 either of silk or porcelain, or other suitable material, may be hung from the hooks 24 of the wire frame so as to surround the said side lamps 30. 'lhis `shade 37 is formed with a ring 38 which is received into the hooks 24 to support the shade.

The ribs 17 of the shade holder as well as the side of the rafle' tor have an incurve e usual mn- The swivel connection of the lamp abou; mili y ouhein length, so that the Sida t'mips may be tamed up into a'more iiprigh posities@ it desired.

` them around closer to the to ruig' ol lh I'raxne or to extend more diremo oulwnrl so as to adapt them to ---:idi ring topy ol' varying sizes; or the ,s1-im may be livin. upward or downward i i harige the ehwation.

l also provide an auxiliary wire frame to mppolt a shade (ront'inlly of the lamp body. l los ifopport is separable from the main wire 'traine and is shown in detail in Fig. 9. Vln thi 1 the auxiliary holder comprises a, small ventral ring 4t! with which are connerie four radiating wire arms or ribs 41, mid wire ribe l-eing bent to form eyes at one end throinh which the ring4Upasse", the oid/er ends oi said ribs being bent downturd to form downward projecting fingers 42. Vbien pass through the eyes formed in ribs li, so :is to ronnect the auxiliary win treme with the main traine. v Interniedi the .lmvnwardly extending portions 42 and the radiating portions 4l o' said rilvs, varh of said ribs is bent around to form e ikoop 43., and through the eyes of these loops there is run n wire ring 44 'which is welded or otherwise secured thereto, and which prevents the spreading apart of the members 4l and holds them in ixed relation to @nell other.

At the junction of the' arms 23 with the ribs l? the eyes 25 are formedby looping thil wire as already described. The an iliary shade holder trame above desr'rbed consisting of the tw o rings 4l) and 44, and the` arms on rib portions 4l. is assembled with the main shade holder frame by inz-wriing tnv downwardly projertiug ngers 4L* through the eyes 25 as shown in Fig. l1.

shade 4f having a top 4G is assembled with the auxiliary wire frame. Any snitA able rlaniping means may be employed; thiit shown in the drawings is as follows 2- 'l'be top -lll of the shade is formed with a. ventral aperture 47. A bolt 48 is passed up through the ring and thence up through the said almrtnre 47 in the top of the shade,

and then a clamping nut 49 is screwed onto,

the upper end ol the holt 48 and set up to clamp the top of the shade and the ring 40 firmly together'. Preferably washers 51 and are employed for bearing surfaces on the under side of the shade top 46 and on the upper side of the head of the bolt- 48.

This shade should preferably have spread enough to cover the full rluster of lights the ,saine as the shade 37 in Fi". liinrloses said cluster o'f lights.

It ,it is desired to dispense with the eentrui indirect lightand retlertor by dise unwilling and to use`onlyv the side lights turned at a downward inrlination, the same vribs of the first described wir(- shade Isrrewed onto the endof the bolt :37.

body 1 may be employed as in the several forms already described, and in this rase the wire frames may both be dispensed with. Means for connecting the shade with the lamp body may be provided with locking mechanism of the same character and working on the same principle as that in whrh the wire frame which supports the indirect reflector and the ring topped shade is locked to the lamp body. This torni of construetion is shown in Figs. 10, 1l and 12. ln this Case the reflector supporting plnte 3 shown in Figs. 1 and 4 may be entirely dispensed with. The rim 1l will be` formed with notches 27 similar' to those shown in Figs. 2 and 3. The shade holder 53 is bell-shaped as shown in Figs. 10 and llyand is provided with lugs 54 on its periphery for the purpose of engaging with the notches 27 corre# function to the lugs 18 on the holder; that is the shade holder 5? will be assembled with the lamp bodyr by setting-the shade holder down upon the lamp body with the said lugs r-l in alinrnunt with the notches 2, and then giving a partial turn to the shade holder so as to bring thtl said lugs 54 around into the annnlgr groove within the rinl ll intermediate thetnotrhes. The lower edge of the shade holdA 53 will rest upon the flaring rim portion il il' the plate 8" is used; when surh plate is not used it will simpl)4 rest on the flaring rim l0 of the lamp body. Y

f'lfhe shade is similar to the shade 45 shown in Fig. R and already described` and has a top 56 whit'h is united with the shade holder 5?] in :i very similar manner to that in which the shade ifi is united to the auX- iliary rage shown in Fig-H: that is th(I shade top .WG is formed with a ventral aperture :ihd the shade holder 53 is also formed with a ventral aperture in itsl top. The two are united by means of a bolt 5T, said bolt passing through the apertures` in the shade top 56 and in the shade holder 525, and are clamped together by means ol a nut 5H Preferably washers 6U and 6l are employed to form the'benring surfaresdot the shade and shade holder.

It will thus be seen that the saine lamp bod)Y Ifind the saine general principle' of spond ing in uniting together the shade holder und the lamp iody are employed in all the severaly differentv forms. lf the indirect light is desired to be used together with a cluster of lamps comprising u ventral light and side lights as shown in Fig. 1. the lamp body is Iadapted for that purpose as already described with reference to Figs. l, 2, 3, 4 and 5, the wire frame which serves as a shade holder being locked into combination with the lamp body by means of the lugs formed by the eyes 18 engaging with the groove formed with a formedin the rim 11 of the lain. bodyV as already described, and being fitte to be engaged or disengaged, as desired, by means of the notches 27 and the rotation of the wire frame on its seat. The said wire frame serves as a shade holder if a shade 37 is de sired in addition to the refiectoi'. f

In such case the shade will have a ring top as to allow the light from the central lamp to be reflected upwardly. If, however, the center light `is to be dispensed with and the side lights only are used, then it will not be necessary to use the indirect reflector 7 and the shade 45, such as shown in Fig. 8, may be employed and connected with the main shade older by means of the auxiliary shade holder and the bolt shown in Fig. B.

' If the indirect lamp together with its re- Hector are to be dispensed with and dismantled, the wire frames are both removed, and a shade 55 together with the bell-shaped shadei holder 53 are employed, the shade holder 53 being locked to the body l in a similar manner to that in which the wire frame is locked to the body. This gives the effect of a low' hanging shade. It will thus be' seen that the aine lamp body may be used inter-changea ly with any of the several forms of shade holders and shades.

1. An electric lamp body having in com'- bination therewith a shade holder, said shadeholder and lamp body having interlocking connections, whereby the shade holder may be locked to the lamp body, and an auxiliary shade holder adapted to be seated upon the top of said first shade holder` one of said shade holders being other of said s ade holders being formed with a liirality of coperating finger holes with wiiich said fingers are adapted to engage to hold the two shades together.

. 2. An electric lainp body having an upper end formed with a rim having an annu ai cove and a plurality of notches extending gom the upper edge of the rim down into said annular groove, a lamp shade holder which` is adapted to fit intoj said annular groove,` i prevent the shade holder from being inserted into the said groove except when the lugs are alined with the notches, said lugs being so spaced apart with relation to the notches that when the lugs are brought into alinement with the notches, said shade holder may be rotated to turn' the lugs into the groove out of alinement with `the' notches and lock the shade holder and the body together, said shade holder being formed with a plurality of eyes at its upper end for engagement with an auxiliary shade holder, in combination with an auxiliary shade holder to be seated on the'top of said first shade holder, and having a plurality of fingers ring of a lamp shade, said holder being formed with eyes for detachable engagei nient with an auxiliar shade holder, in combination with an auxi iary shade holder having a rin formed with a plurality of fingers which etachably engage with the eyes formed in said first shadnfholder.

4. An electric lamp body having a cup* shaped upper end, a lam shade holder mounted thereon formed asa skeleton cage, having a plurality of uprightrib portions, the upper ends of said ribs also having arms provided with hooks to detachably hold the ring of a lamp shade, said holderd being formed with eyes for detachable engagement with an auxiliary shadeholder, in

combination with an auxiliary shade holder plurality of fingers and the Y and having a plurality of lugs which 4 'wire ribs4 bot having a ring formed with a plurality o'l` fingers which detachably engare with the eyes formed in said first sha e holder2 a small ring centrally arranged with relation to said first ring of the auxiliary shade holder and having ribs radiating from said small central ring and connected with said outer ring, and means for clamping a'shade to the small center ring of said second holder.

5. An electric-lamp body having an upper end formed with a ring having an annular roove and a pluralit of notches extending from the upper e ge of the riin down into said annular groove, a wire lain shade holder formed with wire yupright ri s, and wire ring portions connectin the said wire ribs both at the top and at the bottom, said rib portions being bent near the lower ends to form loops which are adapted to engage with y said notches, and 4which when the holder is rotated engage with the groove in the lamp body to lock the shade holder to the lamp body, the up er ends of the rib portions being'extende upwardl extending arms with hooks to receive an hold the ring of a lamp shade.

6. An electric lamp body having an upper end formed with a ring having an annular groove and a plurality of notches extendin from the upper edge ofthe rim down into said annularv roove, a wire lamp shade holder formed wit wire upright ribs, and' wire ringlportions connecting the said at the top and at the bottom, said rib ortions being bent near the lower ends to korin loops which are adapted to engay Ae with said notches, and which when the hol er is rotated en a e with the and bent to form TOO'VP, in the lamp body to loc t e shade ho der to f fi the lamp body, the upper ends of the rib. portions being extended and bent to form upwardi extending arms with hooks to receive en hold the ring of a lamp shade, seid 5 outwardly extending arms being bent to form e es for engagement with an anxiliary s ade holder, in combination with an auxiliary shade holder having a ring formed with a plurality of downwardly extending fingers which are adapted to engage with 10 said eyes formed' in the arms of said first shade holder.

in testimony whereof I affix m si ature. HENRY D. A ILT.. 

